Is my H4 visa post divorce valid or canceled on its basis and I'll have to reapply for visit or business visa ?

Your spouse visa is no longer valid as you are no longer married.

How do I fill in line 14, Part C on the I-130 form if I have H1B approval but no visa and I came to the US as F1-student?

Your H-1B approval notice should have your new I-94 expiration date.

I am with employer A on h1b visa with green card filed and i140 stage completed. if I move to B, what happens to wife h4 ead?

I'm guessing you have not filed an I-485 Application correct?

How long after filing I-485 you may be called for an interview?

Usually within 4 to 6 months but it may vary depending on the local office.

How long does it take to get a receipt of application for removal of clause for my green card?

You should wait for the receipt notice because it normally contains language about it serving as work and travel authorization.

Issue with Passport in getting Police Clearance Certificate in India for I 130 Consular Processing?

You can provide an explanatory letter - a new I-130 should not be required.

Can the new landlord evict me without going to court? I he does go to court how much time will I have to leave.

The landlord will need to complete the eviction proceeding in court.

It is legal, albeit annoying of course.

We need Security deposit back.

You cannot request it anonymously but you can request it in writing.

What do we do?

If the neighborhood is dangerous, don't wait around - fix the door yourself and deduct the reasonable cost from the rent.